JP2000352271A - INSTALLING METHOD OF SASH MEMBER TO PCa MEMBER - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install a sash member between two PCa plates without generating excessive stress in the sash member and the PCa plates. SOLUTION: Fastener hardware 3 comprising by forming a bolt inserting hole 3A in one end part and a horizontal loose hole 3B in the other end part is prepared to install a vertical frame material 4 in a joint part of two PCa wall plate members 1, 2 adjacent in the horizontal direction, the bolt inserting hole 3A and the horizontal loose hole 3B are used, the fastener hardware 3 is fastened by a bolt to the PCa wall plate members 1, 2 via spherical surface washers 14, 17, 19, 22 so as to stride over respective opposed end parts 1A, 2A of the PCa wall plate members 1, 2, and the vertical frame material 4 is fastened by a bolt to the fastener hardware 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a sash member PC.
It relates to a method of attaching to the a member.

[0002]

2. Description of the Related Art For example, when a sash vertical frame member is arranged above a joint portion of a PCa plate of two horizontally adjacent curtain wall members, the vertical frame is connected to one PC.
When fixed to only the a-plate, the external force received by the sash due to wind pressure or the like acts as an eccentric load only on one end of one PCa-plate, which is not preferable in terms of the opposing surface of the PCa-plate and the arrangement of the reinforcing bars.

Conventionally, in order to eliminate this problem, a pair of angle members are bolted to both sides of the lower end of the sash vertical frame, and these angle members are bolted to two horizontally adjacent PCa plates. Fixed, two PCs
The load is transmitted evenly to the a-plate.

[0004]

However, as described above, two adjacent PCa boards having the vertical frame attached thereto behave in various ways due to the influence of temperature change, drying shrinkage, earthquake, wind, and the like. These two PCa plates do not always move in the same way, and behave while producing a slight difference. Therefore, it cannot cope with the thermal expansion and contraction in the in-plane horizontal direction of the PCa plate, as well as the behavior in the out-of-plane direction. However, there is a problem that a large reaction force is generated.

[0005] This will be described more specifically. PCa
When behaviors in three directions of in-plane / horizontal / vertical directions and out-of-plane directions occur in the plate joint portion, general 2.5 to 3.
In the case of a PCa plate having a width of about 8 m, the amount of each behavior is estimated to be as follows. (1) In the in-plane horizontal direction, the temperature difference due to thermal expansion and contraction is 40
If it is set to 70 degrees, it becomes about 1 to 3 mm. (2) In the in-plane vertical direction, since the PCa plate is a spandrel plate fixed to the beam, the length of the PCa plate protruding from the fixing portion fastener is often about 1.0 m. The amount of behavior due to thermal expansion and contraction is less than 1.00 mm. (3) The deflection due to the wind load or the out-of-plane seismic force is less than 0.1 mm at the end when calculated as a projecting beam at both ends with a wind load of 500 kgf / m ² (extending length of about 1 m). (4) When there is a temperature difference between the front and back sides, a warp in the out-of-plane direction occurs, but it is about 1 to 5 mm at both ends of the PCa plate from an experimental example, a measurement example, and an analysis result. (5) Due to the finish on the surface, the drying shrinkage progresses differently on the front and back of the PCa plate, causing warpage in the out-of-plane direction. The amount of warpage is less than 0.1 mm at the end of the PCa.

When a fastener is provided on two PCa boards in the above-described situation, some means for absorbing thermal expansion and contraction in a horizontal direction in a plane is required. As for the behavior in the out-of-plane direction, it is considered that the behaviors of the adjacent PCa boards are almost in the same direction, so that no countermeasure is necessary if the behavior is ideal. However, in practice, a slight difference occurs, and therefore, some countermeasures are required for out-of-plane displacement.

An object of the present invention is to displace two adjacent PCa plates to which a sash member is attached due to thermal expansion and contraction in the in-plane horizontal direction, and to displace these two PCa plates in the out-of-plane direction.
An object of the present invention is to provide a method of attaching a sash member to a PCa member, which is capable of absorbing displacement of a plate end.

[0008]

According to the present invention, two PCa horizontally adjacent to each other are provided.
A method for attaching a sash member to a joint portion of a member, comprising: providing a fastener hardware having a bolt through hole formed at one end and a horizontal loose hole formed at the other end; Using a hole, the fastener metal is bolted to the two PCa members via a spherical washer so as to straddle each of the opposed ends of the two PCa members, and a sash member is bolted to the fastener metal. A method of attaching a sash member to a PCa member, characterized in that the sash member is stopped, is proposed.

The load received by the sash member is evenly transmitted to the two PCa members. The horizontal behavior in the plane accompanying the thermal expansion and contraction of the PCa member is absorbed by the horizontal loose hole of the fastener. The difference in behavior (shift) of the PCa member in the out-of-plane direction can be dealt with by rotating the fastener hardware by the effect of the spherical washer.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a sash member PCa according to the present invention.
It is explanatory drawing for demonstrating an example of embodiment at the time of attaching the vertical frame of a sash to a PCa wall board member by the attachment method to a member.

In FIG. 1, reference numerals 1 and 2 denote PCa wall plate members fixed to a skeleton (not shown). The PCa wall plate members 1 and 2 are adjacent to each other in an in-plane horizontal direction at an appropriate interval. It is arranged like this.

The reference numeral 3 designates P, which straddles the opposite ends 1A, 2A of the PCa wall plate members 1, 2.
The fastener metal fitting 3 is attached to the Ca wall plate members 1 and 2. The fastener metal fitting 3 has a circular bolt through hole 3A having a diameter corresponding to the bolt diameter to be used at one end thereof and a horizontal loose hole at the other end. 3B is formed.
A cubic material holding portion 3C, which is a plate-shaped metal fitting, is fixed to a substantially central portion of the fastener metal 3 by welding. The cubic material holding portion 3 </ b> C may be bolted or may be integrated with the fastener hardware 3.

As will be described later, the fastener metal member 3 is formed by passing a bolt through a bolt through hole 3A and a horizontal loose hole 3B, so that the opposite ends 1 of the PCa wall plate members 1 and 2 are formed.
A and 2A are bolted to each other so that the fastener 3 is attached to the PCa wall plate members 1 and 2.

On the other hand, the vertical frame member 4 of the sash is bolted to the cubic material holding portion 3C by using the bolt through hole 3Ca formed in the cubic material holding portion 3C. In the present embodiment, a bolt 4B is fixed to the groove 4A of the vertical frame member 4 of the sash, and one to several liners 5 and the spherical washer 6 are passed through the bolt 4B, and then the bolt 4B is inserted into the bolt through hole 3Ca. The nut 8 is screwed through the square washer 7, and the nut 8 is tightened to fix the vertical frame member 4 of the sash to the cubic material holding portion 3 </ b> C. Then, the square washer 7 and the cubic material holding portion 3C are fixed by welding.

Next, a method of attaching the fastener 3 to the PCa wall plate members 1 and 2 will be described with reference to FIG. First, in order to bolt the fastener 3 to the PCa wall plate members 1 and 2 using bolts 9 and 10, an insert 11 corresponding to the bolt through hole 3A of the fastener 3 is provided at the opposite end 1A. An insert 12 corresponding to the horizontal loose hole 3B of the fastener 3 is provided at the end 2A. Although the inserts 11 and 12 may be buried in a factory in advance, they may be buried on site.

The bolt 9 passes through the square washer 13, the spherical washer 14, and the sliding member 15, passes through the bolt through hole 3 A, passes through the sliding material 16 and the spherical washer 17, and is screwed into the insert 11. Then, one end of the fastener 3 can be temporarily fixed to the opposite end 1A by the bolt 9.

On the other hand, the bolt 10 is passed through the square washer 18, the spherical washer 19, and the sliding member 20, then through the horizontal loose hole 3 B, further through the sliding member 21 and the spherical washer 22, and screwed into the insert 12. The other end of the fastener 3 can be temporarily fixed to the opposite end 2A by the bolt 10.

Thereafter, the position of the fastener metal 3 is determined, and the bolts 9 and 10 are sufficiently tightened to securely attach the fastener metal 3 to the PCa wall plate members 1 and 2. The load from the vertical frame member 4 of the sash attached to the cubic member holding portion 3C is evenly transmitted to the two PCa wall plate members 1 and 2 by the fastener 3. In addition, a square washer 23 may be interposed between the fastener hardware 3 and the sliding member 15. Similarly, a square washer 24 can also be interposed between the fastener hardware 3 and the sliding member 20, but in this case, the bolt through hole 24A of the square washer 24 is formed as a loose hole.

FIG. 3 shows the PCa wall plate member 1 as described above.
FIG. 5 is a side view showing a state in which one end of the fastener hardware 3 is attached to the fastener. As can be seen from FIG. 3, since the spherical washers 14 and 17 are provided before and after the fastener metal 3, the fastener metal 3 can be twisted with respect to the PCa wall plate member 1.

As can be seen from FIG. 2, since the bolt 10 is passed through the horizontal loose hole 3B of the fastener 3, the fastener 3 and the PCa wall plate member 2 can be displaced in the in-plane horizontal direction. . The fastener hardware 3 is attached by inserting the inserts 11 and 12 and the bolts 9 and 1
0, for example, P
An anchor bolt may be embedded in the Ca wall plate members 1 and 2 instead of the inserts 11 and 12, and the fastener metal 3 may be attached by using the anchor bolt and the nut in the same manner as described above.

Since the vertical frame member 4 of the sash is attached to the PCa wall plate members 1 and 2 using the fastener hardware 3 as described above, the following effects can be obtained.

The horizontal movement in the in-plane direction due to the thermal expansion and contraction of the PCa wall plate members 1 and 2 can be absorbed by the horizontal loose holes 3B of the fastener hardware 3. At this time, the behavior can be smoothly absorbed by the two sliding members 20 and 21 interposed in this portion, and noise can be prevented.

Although the behavior difference (shift) in the out-of-plane direction of the PCa wall plate members 1 and 2 is smaller than that due to thermal expansion and contraction, two spherical washers 14, 17 and 1 sandwiching the fastener 3 are provided.
This can be dealt with by rotating the fastener hardware 3 by the effects of 9 and 22. At this time, the vertical frame member 4 of the sash attached to the cubic material holding portion 3C is twisted. However, since the spherical washer 6 is disposed in the cubic material holding portion 3C, the twist is absorbed, and the sash is absorbed. Is not twisted.

The difference between the PCa wall plate members 1 and 2 in the in-plane vertical direction due to thermal expansion and contraction is slight.
This can be achieved by rotating the fastener hardware 3. The vertical movement absorption by this rotation is sufficiently effective even when the PCa wall plate members 1 and 2 are locked. In addition, as a measure to absorb the position adjustment (member error, construction error) in the vertical and horizontal directions, a hole having an adjustment allowance for the bolt diameter is formed in the fastener 3 so that the bolt diameter can be adjusted before disposing the sliding material. It is also possible to arrange a square washer having the above holes and to weld the square washer and the fastener after positioning. In this case, one corner washer is a loose hole.

FIG. 4 shows another embodiment of the present invention. In the embodiment shown in FIG. 4, the upper surfaces 1Aa, 2A of the opposing ends 1A, 2A of the PCa wall plate members 1, 2 respectively.
The fastener metal member 3 is attached to the fastener metal member 3 in the same manner as in the previous embodiment, and the vertical frame member 4 of the sash is attached to the fastener metal member 3 by a pair of angles 31 and 32 which are fixed to the fastener metal member 3 by welding. It is designed to be attached.

FIG. 5 is an exploded perspective view of each element for explaining the attachment of the vertical frame member 4 of the sash shown in FIG. 4 to the PCa wall plate members 1 and 2.

Numerals 11 and 12 denote inserts (long nuts) with the same plates as those shown in FIG.
It is embedded in Aa and 2Aa, respectively. The same fastener 3 as shown in FIG. 2 can also be used. One of the angles 31 is such that the bolt through holes 31A having a diameter corresponding to the bolt diameter to be used are aligned with the bolt through holes 3A of the fastener metal 3.
At the same time, the other angle 32 is bolted to the PCa wall plate member 2 together with the fastener hardware 3 so that the loose hole 32A is aligned with the horizontal loose hole 3B of the fastener hardware 3.

The bolt 35 is first passed through the square washer 33 and the angle 31, then through the bolt through hole 3 A of the fastener 3, and then through the slip material 36 into the insert 11.
And temporarily fixed.

On the other hand, the bolt 37 is passed through the square washer 34 and the angle 32, passes through the horizontal loose hole 3 B of the fastener 3, is screwed into the insert 12 via the sliding member 38, and is temporarily fixed. .

On the other hand, the vertical frame member 4 of the sash is bolted to a pair of angles 31 and 32 by bolts 39 using a loose hole 4C formed at the lower end. Specifically, the bolt 39 includes the washer 40 and the angle 32
After passing through the through hole 32B, the R liner 41, the sliding material 42, the loose hole 4C, the sliding material 43, the R liner 44, the through hole 31B of the angle 31, and the washer 45,
A nut 46 is screwed onto the tip. And nut 46
To a pair of angles 31 on the vertical frame 4 of the sash,
32 is securely bolted.

Since the vertical frame member 4 of the sash is attached to the fastener hardware 3 as described above, the structure in which the loose hole 4C can absorb the axial displacement of the vertical frame member 4 of the sash. The vertical liner 4 of the sash has a structure in which the R liners 41 and 44 can absorb the inclination in the in-plane horizontal direction.

Thereafter, after the position of the vertical frame member 4 of the sash, that is, the pair of angles 31, 32 is determined, the bolt 3
Fasten fastener 3 by tightening 5 and 37
It can be securely attached to the Ca wall plate members 1 and 2. Since the bolt 37 is passed through the horizontal loose hole 3B of the fastener 3, it is possible to absorb different movements in the in-plane horizontal direction between the PCa wall plate members 1 and 2 in the same manner as in the previous embodiment. .

Then, the pair of angles 31 and 32 are fixed to the fastener 3 by welding.
34 is fixed to the corresponding angles 31 and 32 by welding.

According to the mounting method shown in FIG. 5, the following effects can be obtained.

The horizontal behavior in the in-plane direction due to the thermal expansion and contraction of the PCa wall plate members 1 and 2 can be absorbed by the horizontal loose hole 3B of the fastener hardware 3. Here, the behavior can be smoothly absorbed by the sliding member 38 interposed in this portion, and no sound is generated.

Since the fastener hardware is attached to the upper surfaces 1Aa and 2Aa of the PCa wall plate members 1 and 2, displacement of the PCa wall plate members 1 and 2 in the out-of-plane direction can be dealt with by rotating the fastener hardware 3. Although the vertical frame member 4 of the sash is twisted, the amount thereof is small, and can be dealt with by elastic deformation of the member. In order to avoid this positively, R liner 4
Instead of 1 and 44, a configuration may be adopted in which a spherical washer is arranged, so that it is possible to cope with the rotation.

The displacement of the PCa wall plate members 1 and 2 in the in-plane vertical direction can be dealt with by the spring deformation of the fastener hardware 3. Note that a spherical washer may be used to avoid this positively.

Since the angle members 31 and 32 are fixed by welding so as not to rotate, the load received by the vertical frame member 4 of the sash is 2
The load is evenly transmitted to the PCa wall plate members 1 and 2, and a biased load does not act on the PCa wall plate members.

[0040]

According to the present invention, if a sash member is attached so as to extend between two adjacent PCa members,
The use of loose holes and spherical washers on fasteners allows absorption of different behavior in the horizontal, vertical, and out-of-plane directions at the joints caused by thermal expansion of PCa members, earthquakes, wind pressure, etc. As a result, it is possible to transmit an even load to two PCa members without causing excessive stress on the sash member and without generating a large reaction force on the anchor portion of the PCa member. Becomes

[Brief description of the drawings]

FIG. 1 is an explanatory diagram for explaining an example of an embodiment in which a sash vertical frame member is attached to a PCa wall plate member according to the present invention.

FIG. 2 is an exploded perspective view for explaining a method of attaching the fastener hardware shown in FIG. 1 to a PCa wall plate member.

FIG. 3 is a side view showing a portion of the PCa wall plate member shown in FIG. 2 to which fastener hardware is attached.

FIG. 4 is a perspective view showing another embodiment according to the present invention.

5 is an exploded perspective view for explaining a method of attaching the vertical frame member to the PCa wall plate member using the fastener hardware shown in FIG.

[Explanation of symbols]

 1, 2 PCa wall plate member 1A, 2A Opposite end 3 Fastener metal 3A, 3Ca, 24A Bolt through hole 3B Horizontal loose hole 3C Cubic material holding part 4 Vertical frame material 6, 14, 17, 19, 22 Spherical washer 9, 10 bolts 11, 12 inserts

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shigeru Sawaragi F-25 term, Taisei Corporation, 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo 2E011 JA00 KA04 KB02 KC04 KD26 KD28 KD34 KE03 KE04 KE05 KE10

Claims (1)

[Claims] 1. A method for attaching a sash member to a joint portion of two horizontally adjacent PCa members, wherein a bolt through hole is formed at one end and a horizontal loose hole is formed at the other end. Prepare fastener hardware consisting of
By using the bolt through hole and the horizontal loose hole, the fastener metal is straddled by each of the opposite ends of the two PCa members, and the two PCa members are interposed via spherical washers.
A method of attaching a sash member to a PCa member, wherein the sash member is bolted to a member and the sash member is bolted to the fastener hardware.